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<head><meta charset="utf-8"><title>weekly meeting 2020-03-12 #54818 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html">weekly meeting 2020-03-12 #54818</a></h3>

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<a name="190299649"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190299649" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190299649">(Mar 11 2020 at 16:09)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>  ; the triage meeting will be starting in 21 hours 50 minutes</p>



<a name="190299722"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190299722" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190299722">(Mar 11 2020 at 16:09)</a>:</h4>
<p>We are going over this process with <span class="user-mention" data-user-id="116083">@pnkfelix</span> right now</p>



<a name="190300329"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190300329" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190300329">(Mar 11 2020 at 16:14)</a>:</h4>
<p>We will be doing <a href="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202020-03-12.20.2354818/near/190299848" title="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202020-03-12.20.2354818/near/190299848">pre-triage in a parallel topic</a></p>



<a name="190301017"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190301017" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190301017">(Mar 11 2020 at 16:20)</a>:</h4>
<p>We'll be having a WG checkin from <code>WG-nll</code> tomorrow</p>



<a name="190301065"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190301065" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190301065">(Mar 11 2020 at 16:20)</a>:</h4>
<p>hey <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> if there's anything to share, let us know :)</p>



<a name="190301358"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190301358" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190301358">(Mar 11 2020 at 16:23)</a>:</h4>
<p>Likewise we will be having <code>WG-parallel-rustc</code>, cc <span class="user-mention" data-user-id="116122">@simulacrum</span> to share about this</p>



<a name="190301413"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190301413" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190301413">(Mar 11 2020 at 16:24)</a>:</h4>
<p>no updates from parallel unfortunately</p>



<a name="190301430"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190301430" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190301430">(Mar 11 2020 at 16:24)</a>:</h4>
<p>we've not made any changes/progress I think</p>



<a name="190302422"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190302422" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190302422">(Mar 11 2020 at 16:33)</a>:</h4>
<p>We have also started filling the <a href="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both" target="_blank" title="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both">Agenda for this meeting</a></p>



<a name="190304085"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190304085" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190304085">(Mar 11 2020 at 16:48)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190301065" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190301065">said</a>:</p>
<blockquote>
<p>hey <span class="user-mention silent" data-user-id="116118">Matthew Jasper</span> if there's anything to share, let us know :)</p>
</blockquote>
<p>There's not. Why hasn't wg-nll been removed from the rotation?</p>



<a name="190386826"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190386826" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190386826">(Mar 12 2020 at 13:06)</a>:</h4>
<p><span class="user-mention" data-user-id="116118">@Matthew Jasper</span> yeah we were talking about that with <span class="user-mention" data-user-id="116083">@pnkfelix</span> but asked just in case there were something else to share</p>



<a name="190386838"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190386838" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190386838">(Mar 12 2020 at 13:06)</a>:</h4>
<p>we need to remove nll from rotation then</p>



<a name="190386928"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190386928" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190386928">(Mar 12 2020 at 13:07)</a>:</h4>
<p>btw, hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>, triage meeting will be starting in 53 minutes</p>



<a name="190391968"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190391968" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190391968">(Mar 12 2020 at 13:58)</a>:</h4>
<p><span class="user-mention" data-user-id="116118">@Matthew Jasper</span> I had thought there was still one last thing for the migration to NLL; removing region inference from typeck or some such?</p>



<a name="190392277"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392277" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392277">(Mar 12 2020 at 14:00)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>! Add a <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span> emoji to show you're here :)</p>



<a name="190392308"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392308" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Matthew Jasper <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392308">(Mar 12 2020 at 14:01)</a>:</h4>
<p>There's <a href="https://github.com/rust-lang/rust/issues/69189" target="_blank" title="https://github.com/rust-lang/rust/issues/69189">#69189</a> open</p>



<a name="190392353"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392353" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392353">(Mar 12 2020 at 14:01)</a>:</h4>
<p><span class="user-mention" data-user-id="116118">@Matthew Jasper</span> (ah, okay, and that should tie things off for NLL? Sounds good. We'll catch up on that later then.)</p>



<a name="190392364"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392364" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392364">(Mar 12 2020 at 14:01)</a>:</h4>
<p><a href="https://github.com/rust-lang/blog.rust-lang.org/pull/534" target="_blank" title="https://github.com/rust-lang/blog.rust-lang.org/pull/534">https://github.com/rust-lang/blog.rust-lang.org/pull/534</a> is a post asking for side effect feedback, would appreciate some eyes (particularly from LLVM folk, I guess).</p>



<a name="190392430"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392430" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392430">(Mar 12 2020 at 14:02)</a>:</h4>
<p>Heh I think we have thus started off with the few minutes for ...</p>



<a name="190392436"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392436" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392436">(Mar 12 2020 at 14:02)</a>:</h4>
<h2>Announcements</h2>



<a name="190392467"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392467" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392467">(Mar 12 2020 at 14:02)</a>:</h4>
<ul>
<li>Niko likes the <span aria-label="sparkling heart" class="emoji emoji-1f496" role="img" title="sparkling heart">:sparkling_heart:</span> emoji, he plans to use it more often</li>
</ul>



<a name="190392516"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392516" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392516">(Mar 12 2020 at 14:03)</a>:</h4>
<p>The <a href="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both" target="_blank" title="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both">agenda</a> already has some announcements listed, namely:</p>



<a name="190392527"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392527" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392527">(Mar 12 2020 at 14:03)</a>:</h4>
<ul>
<li><a href="https://forge.rust-lang.org/compiler/steering-meeting.html" target="_blank" title="https://forge.rust-lang.org/compiler/steering-meeting.html">Planning meeting</a> tomorrow (March 13th)</li>
</ul>



<a name="190392540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392540">(Mar 12 2020 at 14:03)</a>:</h4>
<ul>
<li>Rust 1.42 is released today</li>
</ul>



<a name="190392618"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392618" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392618">(Mar 12 2020 at 14:04)</a>:</h4>
<ul>
<li><code>rustc-guide</code> was renamed to <code>rustc-dev-guide</code></li>
</ul>



<a name="190392653"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392653" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392653">(Mar 12 2020 at 14:04)</a>:</h4>
<p>and now lives on <a href="https://rustc-dev-guide.rust-lang.org" target="_blank" title="https://rustc-dev-guide.rust-lang.org">https://rustc-dev-guide.rust-lang.org</a></p>



<a name="190392660"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392660" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392660">(Mar 12 2020 at 14:04)</a>:</h4>
<p>hmm we should add a link from <a href="https://forge.rust-lang.org/compiler/steering-meeting.html" target="_blank" title="https://forge.rust-lang.org/compiler/steering-meeting.html">that forge page</a> to the <a href="https://github.com/rust-lang/compiler-team/issues?q=is%3Aissue+is%3Aopen+label%3Ameeting-proposal" target="_blank" title="https://github.com/rust-lang/compiler-team/issues?q=is%3Aissue+is%3Aopen+label%3Ameeting-proposal">actual proposals list</a></p>



<a name="190392723"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392723" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392723">(Mar 12 2020 at 14:05)</a>:</h4>
<p>people may not realize how much work is necessary to alpha rename the <code>rustc-guide</code></p>



<a name="190392741"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392741" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392741">(Mar 12 2020 at 14:05)</a>:</h4>
<p>so I think its safe to say we probably won't rename it again. :)</p>



<a name="190392790"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392790" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392790">(Mar 12 2020 at 14:06)</a>:</h4>
<p>right, it may have not been the best decision :P</p>



<a name="190392838"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392838" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392838">(Mar 12 2020 at 14:06)</a>:</h4>
<p>(or at least, <em>I</em> didn't realize how many moving parts were involved until <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> explained it to me yesterday.)</p>



<a name="190392876"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392876" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392876">(Mar 12 2020 at 14:06)</a>:</h4>
<p>I'm not sure this is exactly what announcements are typically for, but I would like to remove support for consuming optimization fuel (<code>-Zfuel</code>) from the layout code. Currently, when layout runs out of fuel it results in an ICE which makes using fuel difficult for debugging other optimizations which use it (<a href="https://github.com/rust-lang/rust/issues/55524" target="_blank" title="https://github.com/rust-lang/rust/issues/55524">#55524</a>). Removing this would close that issue and make debugging other optimization issues a bit easier. </p>
<p>If anyone has any objections, feel free to <span aria-label="thumbs down" class="emoji emoji-1f44e" role="img" title="thumbs down">:thumbs_down:</span> this comment otherwise I'll open a PR, tag the compiler team and let it go through the normal PR process.</p>



<a name="190392945"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392945" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392945">(Mar 12 2020 at 14:07)</a>:</h4>
<p>(I figured this might be the lightest weight way to get a sense of the rest of the teams opinion on this)</p>



<a name="190392957"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392957" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392957">(Mar 12 2020 at 14:07)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190392838" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190392838">said</a>:</p>
<blockquote>
<p>(or at least, <em>I</em> didn't realize how many moving parts were involved until <span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> explained it to me yesterday.)</p>
</blockquote>
<p>the working group learned the hard way that for these things that may look trivial, it's anyway a good idea to ping infra</p>



<a name="190392966"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190392966" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190392966">(Mar 12 2020 at 14:07)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> does it need to be removed from all of the layout code? Is there a way to isolate the optimization parts of layout from other things?</p>



<a name="190393007"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393007" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393007">(Mar 12 2020 at 14:07)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> There's just <a href="https://github.com/rust-lang/rust/blob/a03921701cdfe0b2c5422240f3ae370ab21069f1/src/librustc/ty/mod.rs#L2227" target="_blank" title="https://github.com/rust-lang/rust/blob/a03921701cdfe0b2c5422240f3ae370ab21069f1/src/librustc/ty/mod.rs#L2227">one line of code</a> that calls <code>consider_optimizing()</code></p>



<a name="190393070"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393070" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393070">(Mar 12 2020 at 14:08)</a>:</h4>
<p>hmm okay</p>



<a name="190393084"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393084" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393084">(Mar 12 2020 at 14:08)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> Hmm. Are you saying the ICE is hard to fix in any other way? It seems like it'd still be a useful tool for folks who are getting segfaults due to layout ..</p>



<a name="190393100"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393100" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393100">(Mar 12 2020 at 14:08)</a>:</h4>
<p>...but no strong objection from me I guess.</p>



<a name="190393119"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393119" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393119">(Mar 12 2020 at 14:08)</a>:</h4>
<p>It certainly seems safe to remove it now</p>



<a name="190393133"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393133" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393133">(Mar 12 2020 at 14:08)</a>:</h4>
<p>but maybe open an issue to investigate re-adding it?</p>



<a name="190393161"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393161" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393161">(Mar 12 2020 at 14:09)</a>:</h4>
<p>I'm not sure. I don't know very much about the layout code so it would be difficult for me to fix personally. If others are using it, I don't want to break their workflows but I've never seen anyone mention using it to debug a layout issue.</p>



<a name="190393206"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393206" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393206">(Mar 12 2020 at 14:09)</a>:</h4>
<p>(since I cannot imagine a fundamental reason we could not support <code>-Zfuel</code> on layout optimizations on things that have compiler-defined representation.)</p>



<a name="190393266"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393266" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393266">(Mar 12 2020 at 14:10)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> I doubt anyone is using it "actively"</p>



<a name="190393272"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393272" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393272">(Mar 12 2020 at 14:10)</a>:</h4>
<p>okay thanks</p>



<a name="190393277"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393277" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393277">(Mar 12 2020 at 14:10)</a>:</h4>
<p>which is partly why I'm ok removing it</p>



<a name="190393301"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393301" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393301">(Mar 12 2020 at 14:10)</a>:</h4>
<p>Okay lets move along to the agenda items...</p>



<a name="190393311"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393311" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393311">(Mar 12 2020 at 14:10)</a>:</h4>
<p>o/</p>



<a name="190393326"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393326" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393326">(Mar 12 2020 at 14:10)</a>:</h4>
<p>we have one beta nomination</p>



<a name="190393343"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393343" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393343">(Mar 12 2020 at 14:10)</a>:</h4>
<p>beta-nom: Use TypeRelating for instantiating query responses <a href="https://github.com/rust-lang/rust/issues/69591" target="_blank" title="https://github.com/rust-lang/rust/issues/69591">#69591</a></p>



<a name="190393486"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393486" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393486">(Mar 12 2020 at 14:12)</a>:</h4>
<p>at this point</p>



<a name="190393496"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393496" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393496">(Mar 12 2020 at 14:12)</a>:</h4>
<p>is this implicitly a stable nomination?</p>



<a name="190393519"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393519" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393519">(Mar 12 2020 at 14:12)</a>:</h4>
<p>I think stable has been already prep'd?</p>



<a name="190393530"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393530" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393530">(Mar 12 2020 at 14:12)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> when is the the nightly-to-beta promotion?</p>



<a name="190393534"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393534" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393534">(Mar 12 2020 at 14:12)</a>:</h4>
<p>Based on <a href="https://github.com/rust-lang/rust/pull/69591#issuecomment-597013001" target="_blank" title="https://github.com/rust-lang/rust/pull/69591#issuecomment-597013001">pietro's comment</a> I think not</p>



<a name="190393540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393540">(Mar 12 2020 at 14:12)</a>:</h4>
<p>today <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="190393547"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393547" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393547">(Mar 12 2020 at 14:12)</a>:</h4>
<p>I guess what I mean is, I'm not sure there's any point in backporting</p>



<a name="190393582"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393582" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393582">(Mar 12 2020 at 14:13)</a>:</h4>
<p>I think nightly to beta already happened</p>



<a name="190393592"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393592" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393592">(Mar 12 2020 at 14:13)</a>:</h4>
<p>ah okay</p>



<a name="190393607"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393607" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393607">(Mar 12 2020 at 14:13)</a>:</h4>
<p>sounds great then</p>



<a name="190393613"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393613" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393613">(Mar 12 2020 at 14:13)</a>:</h4>
<p>we've not switched master to bootstrap off of (new) beta yet though</p>



<a name="190393636"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393636" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393636">(Mar 12 2020 at 14:13)</a>:</h4>
<p>I see, this bug, I think, is young enough that this wasn't on the imminent release?</p>



<a name="190393736"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393736" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393736">(Mar 12 2020 at 14:14)</a>:</h4>
<p>anyway, it all sounds great, beta-accepted.</p>



<a name="190393832"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393832" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393832">(Mar 12 2020 at 14:15)</a>:</h4>
<p>there are no stable-nominations</p>



<a name="190393924"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393924" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393924">(Mar 12 2020 at 14:16)</a>:</h4>
<p>Last time we (<span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> and I) checked, we have 52 P-high issues, 32 of which are unassigned.</p>



<a name="190393954"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190393954" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190393954">(Mar 12 2020 at 14:16)</a>:</h4>
<p>there are 2 P-medium issues that are stable-to-beta regressions</p>



<a name="190394006"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394006" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394006">(Mar 12 2020 at 14:17)</a>:</h4>
<p>namely this one: "internal compiler error: "byte index 4 is not a char boundary"" <a href="https://github.com/rust-lang/rust/issues/69130" target="_blank" title="https://github.com/rust-lang/rust/issues/69130">#69130</a>, which is assigned to <span class="user-mention" data-user-id="119031">@Esteban Küber</span></p>



<a name="190394041"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394041" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394041">(Mar 12 2020 at 14:17)</a>:</h4>
<p>and this one: "Worsened debug build codegen in beta" <a href="https://github.com/rust-lang/rust/issues/68855" target="_blank" title="https://github.com/rust-lang/rust/issues/68855">#68855</a>, which is assigned to <span class="user-mention" data-user-id="125250">@Wesley Wiser</span></p>



<a name="190394109"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394109" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394109">(Mar 12 2020 at 14:18)</a>:</h4>
<p>but since they are P-medium, we have basically said "its okay to ship the release with these bugs"</p>



<a name="190394156"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394156" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394156">(Mar 12 2020 at 14:18)</a>:</h4>
<p>yeah, the first one defintely feels that way.</p>



<a name="190394157"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394157" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394157">(Mar 12 2020 at 14:18)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190394006" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190394006">said</a>:</p>
<blockquote>
<p>namely this one: "internal compiler error: "byte index 4 is not a char boundary"" <a href="https://github.com/rust-lang/rust/issues/69130" target="_blank" title="https://github.com/rust-lang/rust/issues/69130">#69130</a>, which is assigned to <span class="user-mention silent" data-user-id="119031">Esteban Küber</span></p>
</blockquote>
<p>I'm not entirely sure why I put this as p-medium (though I see that I did)</p>



<a name="190394167"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394167" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394167">(Mar 12 2020 at 14:18)</a>:</h4>
<p>there are also four issues that are <a href="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly" target="_blank" title="https://github.com/rust-lang/rust/labels/regression-from-stable-to-nightly">stable-to-nightly regressions</a></p>



<a name="190394192"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394192" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394192">(Mar 12 2020 at 14:19)</a>:</h4>
<p>though I do think we can "afford" to ship with it, but seems like it's probably a relatively easy fix..?</p>



<a name="190394194"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394194" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394194">(Mar 12 2020 at 14:19)</a>:</h4>
<p>one of them is P-medium, the other three are P-high</p>



<a name="190394223"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394223" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394223">(Mar 12 2020 at 14:19)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> I was assuming you assigned that P-medium because it was result of fuzzing</p>



<a name="190394243"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394243" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394243">(Mar 12 2020 at 14:19)</a>:</h4>
<p>and ... unlikely to occur in the wild?</p>



<a name="190394244"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394244" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394244">(Mar 12 2020 at 14:19)</a>:</h4>
<p>ah, perhaps so</p>



<a name="190394250"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394250" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394250">(Mar 12 2020 at 14:19)</a>:</h4>
<p>I missed that it resulted from fuzzing</p>



<a name="190394259"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394259" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394259">(Mar 12 2020 at 14:19)</a>:</h4>
<p>though I don't know; maybe my bias towards ASCII is showing</p>



<a name="190394264"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394264" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394264">(Mar 12 2020 at 14:19)</a>:</h4>
<p>I'm not sure though how unlikely it is. Certainly somewhat</p>



<a name="190394337"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394337" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394337">(Mar 12 2020 at 14:20)</a>:</h4>
<p>I have stray copy-and-pastes inserting weird characters in my code from time to time, at least :)</p>



<a name="190394379"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394379" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394379">(Mar 12 2020 at 14:20)</a>:</h4>
<p>(In any case I don't feel inclined to worry too much about this specific bug at this specific time, but it's an interesting policy question)</p>



<a name="190394454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394454">(Mar 12 2020 at 14:21)</a>:</h4>
<p>I'm going to explicitly walk through the P-high stable-to-nightly regressions</p>



<a name="190394468"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394468" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394468">(Mar 12 2020 at 14:21)</a>:</h4>
<p>just to raise awareness</p>



<a name="190394518"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394518" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394518">(Mar 12 2020 at 14:22)</a>:</h4>
<p>(and because our agenda wasn't overloaded today)</p>



<a name="190394553"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394553" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394553">(Mar 12 2020 at 14:22)</a>:</h4>
<p>P-high regr : "<code>is_x86_feature_detected!("avx512f")</code> fails to build on nightly" <a href="https://github.com/rust-lang/rust/issues/68905" target="_blank" title="https://github.com/rust-lang/rust/issues/68905">#68905</a></p>



<a name="190394577"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394577" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394577">(Mar 12 2020 at 14:22)</a>:</h4>
<p>this is on the path to being resolved, I think.</p>



<a name="190394626"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394626" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394626">(Mar 12 2020 at 14:23)</a>:</h4>
<p>correct, yes, and may need a t-libs backport or so but I'm not (yet) worried</p>



<a name="190394636"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394636" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394636">(Mar 12 2020 at 14:23)</a>:</h4>
<p>(you can read the comment thread; re-stabilizing the feature in question had to be approved by the lang and libs teams...)</p>



<a name="190394671"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394671" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394671">(Mar 12 2020 at 14:23)</a>:</h4>
<p>P-high regr: "cargo check --message-format json regression of error span data on empty <a href="http://main.rs" target="_blank" title="http://main.rs">main.rs</a> file" <a href="https://github.com/rust-lang/rust/issues/68808" target="_blank" title="https://github.com/rust-lang/rust/issues/68808">#68808</a></p>



<a name="190394690"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394690" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394690">(Mar 12 2020 at 14:23)</a>:</h4>
<p>oh yikes I self-assigned this over a month ago...</p>



<a name="190394777"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394777" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394777">(Mar 12 2020 at 14:24)</a>:</h4>
<p>um, sorry.</p>



<a name="190394799"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394799" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394799">(Mar 12 2020 at 14:24)</a>:</h4>
<p>anyway I have nothing to report, it obviously fell off my radar</p>



<a name="190394841"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394841" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394841">(Mar 12 2020 at 14:24)</a>:</h4>
<p>maybe we can try to find a new assignment?</p>



<a name="190394856"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394856" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394856">(Mar 12 2020 at 14:24)</a>:</h4>
<p>(the P-high categorization is interesting. )</p>



<a name="190394896"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190394896" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190394896">(Mar 12 2020 at 14:25)</a>:</h4>
<p>(I <em>think</em> its right to make this P-high. Incorrect/misleading spans can be very annoying...)</p>



<a name="190395009"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395009" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395009">(Mar 12 2020 at 14:26)</a>:</h4>
<p>I can allocate time for it</p>



<a name="190395052"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395052" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395052">(Mar 12 2020 at 14:26)</a>:</h4>
<p>I wonder if some of the diagnostics folks might take a look. I guess we don't yet have a convenient way to ping that group</p>



<a name="190395083"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395083" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395083">(Mar 12 2020 at 14:26)</a>:</h4>
<p>maybe I'll ask <span class="user-mention" data-user-id="126931">@centril</span> for help since they seemed to be involved with injecting it.</p>



<a name="190395097"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395097" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395097">(Mar 12 2020 at 14:26)</a>:</h4>
<p>we'll see.</p>



<a name="190395139"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395139" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395139">(Mar 12 2020 at 14:26)</a>:</h4>
<p>P-high regr: "Compiler error while compiling Winrt" <a href="https://github.com/rust-lang/rust/issues/66402" target="_blank" title="https://github.com/rust-lang/rust/issues/66402">#66402</a></p>



<a name="190395198"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395198" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395198">(Mar 12 2020 at 14:27)</a>:</h4>
<p>what is a daylight saving</p>



<a name="190395200"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395200" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395200">(Mar 12 2020 at 14:27)</a>:</h4>
<p>hey <span class="user-mention" data-user-id="125250">@Wesley Wiser</span> , you have a window box, right? Could you maybe look at this?</p>



<a name="190395227"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395227" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395227">(Mar 12 2020 at 14:27)</a>:</h4>
<p>(sorry, I'm here now and reading backlog)</p>



<a name="190395239"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395239" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395239">(Mar 12 2020 at 14:27)</a>:</h4>
<p><span class="user-mention silent" data-user-id="119009">eddyb</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395198" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395198">said</a>:</p>
<blockquote>
<p>what is a daylight saving</p>
</blockquote>
<p><a href="https://en.wikipedia.org/wiki/Daylight_saving_time" target="_blank" title="https://en.wikipedia.org/wiki/Daylight_saving_time">https://en.wikipedia.org/wiki/Daylight_saving_time</a></p>



<a name="190395247"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395247" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395247">(Mar 12 2020 at 14:27)</a>:</h4>
<p>Sure!</p>



<a name="190395330"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395330" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395330">(Mar 12 2020 at 14:28)</a>:</h4>
<p>It is the result of the world being driven by farmers</p>



<a name="190395378"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395378" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395378">(Mar 12 2020 at 14:28)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330">said</a>:</p>
<blockquote>
<p>It is the result of the world being driven by farmers</p>
</blockquote>
<p>hey, europe is turning it off this year AFAIK</p>



<a name="190395393"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395393" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395393">(Mar 12 2020 at 14:28)</a>:</h4>
<p>(actually that seems to be completely false. <span aria-label="laughing" class="emoji emoji-1f606" role="img" title="laughing">:laughing:</span> )</p>



<a name="190395400"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395400" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395400">(Mar 12 2020 at 14:28)</a>:</h4>
<p><a href="https://www.youtube.com/watch?v=_XFojiOqB3o" target="_blank" title="https://www.youtube.com/watch?v=_XFojiOqB3o">https://www.youtube.com/watch?v=_XFojiOqB3o</a></p>
<div class="youtube-video message_inline_image"><a data-id="_XFojiOqB3o" href="https://www.youtube.com/watch?v=_XFojiOqB3o" target="_blank" title="https://www.youtube.com/watch?v=_XFojiOqB3o"><img src="https://i.ytimg.com/vi/_XFojiOqB3o/default.jpg"></a></div>



<a name="190395411"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395411" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395411">(Mar 12 2020 at 14:28)</a>:</h4>
<p>Do you just want an mcve that's not Windows specific?</p>



<a name="190395433"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395433" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395433">(Mar 12 2020 at 14:29)</a>:</h4>
<p><span class="user-mention silent" data-user-id="123586">nagisa</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395378" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395378">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330">said</a>:</p>
<blockquote>
<p>It is the result of the world being driven by farmers</p>
</blockquote>
<p>hey, europe is turning it off this year AFAIK</p>
</blockquote>
<p>oh maybe that's what <span class="user-mention" data-user-id="119009">@eddyb</span> was implicitly referring to</p>



<a name="190395434"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395434" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395434">(Mar 12 2020 at 14:29)</a>:</h4>
<p><span class="user-mention silent" data-user-id="123586">nagisa</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395378" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395378">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395330">said</a>:</p>
<blockquote>
<p>It is the result of the world being driven by farmers</p>
</blockquote>
<p>hey, europe is turning it off this year AFAIK</p>
</blockquote>
<p>great now the US will be wrong half the year instead of just a few weeks</p>



<a name="190395468"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395468" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395468">(Mar 12 2020 at 14:29)</a>:</h4>
<p><span class="user-mention silent" data-user-id="125250">Wesley Wiser</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395411" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395411">said</a>:</p>
<blockquote>
<p>Do you just want an mcve that's not Windows specific?</p>
</blockquote>
<p>an MCVE wolud be a good start, yeah.</p>



<a name="190395493"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395493" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395493">(Mar 12 2020 at 14:29)</a>:</h4>
<p>if you get us that far, then we can go from there more generally next week.</p>



<a name="190395555"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395555" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395555">(Mar 12 2020 at 14:30)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> I just keep forgetting every yeah that the US doesn't switch to summer time around the spring equinox like the rest of the world</p>



<a name="190395633"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395633" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395633">(Mar 12 2020 at 14:30)</a>:</h4>
<p>boy I wish we had "Dynamically Sized Types" on the agenda today</p>



<a name="190395654"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395654" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395654">(Mar 12 2020 at 14:30)</a>:</h4>
<p>so that I could say "lets stop talking about DST so that we can start talking about DST"</p>



<a name="190395724"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395724" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395724">(Mar 12 2020 at 14:31)</a>:</h4>
<p><span class="user-mention silent" data-user-id="119009">eddyb</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395555" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395555">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> I just keep forgetting every yeah that the US doesn't switch to summer time around the spring equinox like the rest of the world</p>
</blockquote>
<p>yeah that <em>was</em> the result of an attempt from the USA govt to boost its economy</p>



<a name="190395729"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395729" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395729">(Mar 12 2020 at 14:31)</a>:</h4>
<p>which is bonkers</p>



<a name="190395749"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395749" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395749">(Mar 12 2020 at 14:31)</a>:</h4>
<p>Damn it... missed that meeting was 1h earlier, <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span></p>



<a name="190395767"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395767" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395767">(Mar 12 2020 at 14:31)</a>:</h4>
<p>See <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> , I told you we wouldn't have a problem filling up the meeting time</p>



<a name="190395780"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395780" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395780">(Mar 12 2020 at 14:31)</a>:</h4>
<p>(in my defense I didn't mean to get anyone started on this just grumbling out loud that I almost completely missed it)</p>



<a name="190395875"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395875" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395875">(Mar 12 2020 at 14:32)</a>:</h4>
<p><strong>So</strong>: <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> has selected five <a href="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both#Nominated-Issues" target="_blank" title="https://hackmd.io/MwUmK-SbQp2yy5bvZcedTw?both#Nominated-Issues">nominated issues</a> for us to discuss</p>



<a name="190395911"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395911" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395911">(Mar 12 2020 at 14:32)</a>:</h4>
<p>nom 1/5: "Compiler incorrectly assumes int will never be one" <a href="https://github.com/rust-lang/rust/issues/69841" target="_blank" title="https://github.com/rust-lang/rust/issues/69841">#69841</a></p>



<a name="190395936"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395936" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395936">(Mar 12 2020 at 14:32)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190394671" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190394671">said</a>:</p>
<blockquote>
<p>P-high regr: "cargo check --message-format json regression of error span data on empty <a href="http://main.rs" target="_blank" title="http://main.rs">main.rs</a> file" <a href="https://github.com/rust-lang/rust/issues/68808" target="_blank" title="https://github.com/rust-lang/rust/issues/68808">#68808</a></p>
</blockquote>
<p>Yea sorry, this one slipped off my radar, although <span class="user-mention" data-user-id="119031">@Esteban Küber</span> is more familiar with this code even though I injected it :P</p>



<a name="190395945"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395945" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395945">(Mar 12 2020 at 14:32)</a>:</h4>
<p>this apparently is an LLVM injection</p>



<a name="190395974"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190395974" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190395974">(Mar 12 2020 at 14:33)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395767" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395767">said</a>:</p>
<blockquote>
<p>See <span class="user-mention silent" data-user-id="116266">Santiago Pastorino</span> , I told you we wouldn't have a problem filling up the meeting time</p>
</blockquote>
<p>I realized earlier of TZ changes, something to remember for the future, so we can make everyone know about it :)</p>



<a name="190396043"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396043" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396043">(Mar 12 2020 at 14:33)</a>:</h4>
<blockquote>
<p>I realized earlier of TZ changes, something to remember for the future, so we can make everyone know about it :)</p>
</blockquote>
<p>Well this is in part why I always use relative addressing when I announce the meeting times</p>



<a name="190396045"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396045" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396045">(Mar 12 2020 at 14:33)</a>:</h4>
<p>Q: Are people finding these by fuzzing or something? That input looks quite odd</p>



<a name="190396046"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396046" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396046">(Mar 12 2020 at 14:33)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395911" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190395911">said</a>:</p>
<blockquote>
<p>nom 1/5: "Compiler incorrectly assumes int will never be one" <a href="https://github.com/rust-lang/rust/issues/69841" target="_blank" title="https://github.com/rust-lang/rust/issues/69841">#69841</a></p>
</blockquote>
<p>Seems like a possible point release candidate if we can fix it</p>



<a name="190396076"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396076" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396076">(Mar 12 2020 at 14:34)</a>:</h4>
<p>we could ping the LLVM ICE-breakers, though it seems like we've kind of already bisected the llvm side so maybe there's no point</p>



<a name="190396148"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396148" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396148">(Mar 12 2020 at 14:34)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116122">simulacrum</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045">said</a>:</p>
<blockquote>
<p>Q: Are people finding these by fuzzing or something? That input looks quite odd</p>
</blockquote>
<p>there <em>is</em> a user who is actively using fuzzing to file tickets, but I don't think it is this user.</p>



<a name="190396153"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396153" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396153">(Mar 12 2020 at 14:34)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116122">simulacrum</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045">said</a>:</p>
<blockquote>
<p>Q: Are people finding these by fuzzing or something? That input looks quite odd</p>
</blockquote>
<p>that looks to me like a reduced bit of code</p>



<a name="190396161"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396161" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396161">(Mar 12 2020 at 14:34)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116122">simulacrum</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396045">said</a>:</p>
<blockquote>
<p>Q: Are people finding these by fuzzing or something? That input looks quite odd</p>
</blockquote>
<p>Looks minimised from an actual codebase to me.</p>



<a name="190396165"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396165" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396165">(Mar 12 2020 at 14:34)</a>:</h4>
<p>yeah I think we'd at this point want an upstream fix presumably</p>



<a name="190396187"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396187" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396187">(Mar 12 2020 at 14:34)</a>:</h4>
<p>Not really feasible to fuzz an entire compiler.</p>



<a name="190396216"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396216" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396216">(Mar 12 2020 at 14:35)</a>:</h4>
<p>I guess one question is whether "edit: I bisected the regression specifically to llvm/llvm-project@0290a77" has a LLVM bug attachd to it?</p>



<a name="190396224"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396224" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396224">(Mar 12 2020 at 14:35)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116009">nikomatsakis</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396076" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396076">said</a>:</p>
<blockquote>
<p>we could ping the LLVM ICE-breakers, though it seems like we've kind of already bisected the llvm side so maybe there's no point</p>
</blockquote>
<p>yeah, I guess my only question is whether we have an LLVM upgrade scheduled any time soon? Or perhaps we should try to cherry-pick a fix here?</p>



<a name="190396268"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396268" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396268">(Mar 12 2020 at 14:35)</a>:</h4>
<p>we do have an upgrade "in progress" though I think it's stalled out a bit</p>



<a name="190396282"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396282" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396282">(Mar 12 2020 at 14:35)</a>:</h4>
<p>not sure it fixes this though</p>



<a name="190396291"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396291" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396291">(Mar 12 2020 at 14:35)</a>:</h4>
<p>is it fixed upstream?</p>



<a name="190396293"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396293" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396293">(Mar 12 2020 at 14:35)</a>:</h4>
<p>ah, ok</p>



<a name="190396381"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396381" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396381">(Mar 12 2020 at 14:36)</a>:</h4>
<p>well anyway</p>



<a name="190396388"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396388" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396388">(Mar 12 2020 at 14:36)</a>:</h4>
<p>I'd be in favor of trying to get an LLVM ICE-breaker person to look into (a) is this fixed upstream? (b) is there an attached bug? and (c) can we backport a narrow fix</p>



<a name="190396402"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396402" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396402">(Mar 12 2020 at 14:36)</a>:</h4>
<p>and/or push the upgrade through I guess</p>



<a name="190396413"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396413" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396413">(Mar 12 2020 at 14:36)</a>:</h4>
<p>It is fixed on LLVM master as per comment thread, I’d say chances are good that’s in LLVM 10, but I didn’t git log the commit</p>



<a name="190396417"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396417" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396417">(Mar 12 2020 at 14:36)</a>:</h4>
<p>yes, lets ping LLVM ICE-breakers for that</p>



<a name="190396430"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396430" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396430">(Mar 12 2020 at 14:36)</a>:</h4>
<p>(for your first suggestion, that is)</p>



<a name="190396441"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396441" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396441">(Mar 12 2020 at 14:37)</a>:</h4>
<p>(or both of them, the "and/or" that is...)</p>



<a name="190396459"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396459" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396459">(Mar 12 2020 at 14:37)</a>:</h4>
<p>I'm not clarifying my position, am I</p>



<a name="190396499"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396499" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396499">(Mar 12 2020 at 14:37)</a>:</h4>
<p>next nomination</p>



<a name="190396517"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396517" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396517">(Mar 12 2020 at 14:37)</a>:</h4>
<p>nom 2/5: “ICE in collect_and_partition_mono_items” <a href="https://github.com/rust-lang/rust/issues/69785" target="_blank" title="https://github.com/rust-lang/rust/issues/69785">#69785</a></p>



<a name="190396610"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396610" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396610">(Mar 12 2020 at 14:38)</a>:</h4>
<p>this bug surprised me</p>



<a name="190396637"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396637" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396637">(Mar 12 2020 at 14:38)</a>:</h4>
<p>in that its something where replacing a <code>pub(crate)</code> with <code>pub</code> fixes the problem.</p>



<a name="190396642"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396642" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396642">(Mar 12 2020 at 14:38)</a>:</h4>
<p>is that reproducible on stable?</p>



<a name="190396649"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396649" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396649">(Mar 12 2020 at 14:38)</a>:</h4>
<p>@jonhoo says the <code>(crate)</code> part is key</p>



<a name="190396692"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396692" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396692">(Mar 12 2020 at 14:39)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span>  the bug as written uses a feature flag</p>



<a name="190396711"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396711" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396711">(Mar 12 2020 at 14:39)</a>:</h4>
<p>interesting to see their workaround on their app <a href="https://github.com/mit-pdos/noria/commit/d1f78f6c4299fe7c724d16b50b6a7011180ada05" target="_blank" title="https://github.com/mit-pdos/noria/commit/d1f78f6c4299fe7c724d16b50b6a7011180ada05">https://github.com/mit-pdos/noria/commit/d1f78f6c4299fe7c724d16b50b6a7011180ada05</a></p>



<a name="190396720"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396720" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396720">(Mar 12 2020 at 14:39)</a>:</h4>
<p>if not reproducible on stable we should add requires-nightly &amp; downgrade to P-medium</p>



<a name="190396731"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396731" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396731">(Mar 12 2020 at 14:39)</a>:</h4>
<p>collector will act differently based on visibility</p>



<a name="190396733"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396733" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396733">(Mar 12 2020 at 14:39)</a>:</h4>
<p>so one of the open question is "is there a variant that reproduces the issue without the feature flag"</p>



<a name="190396748"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396748" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396748">(Mar 12 2020 at 14:39)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396637" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190396637">said</a>:</p>
<blockquote>
<p>in that its something where replacing a <code>pub(crate)</code> with <code>pub</code> fixes the problem.</p>
</blockquote>
<p>that can certainly happen as a result of some of the "visibility" logic</p>



<a name="190396755"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396755" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396755">(Mar 12 2020 at 14:39)</a>:</h4>
<p><span class="user-mention silent" data-user-id="125250">Wesley Wiser</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190392876" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190392876">said</a>:</p>
<blockquote>
<p>I'm not sure this is exactly what announcements are typically for, but I would like to remove support for consuming optimization fuel (<code>-Zfuel</code>) from the layout code. Currently, when layout runs out of fuel it results in an ICE which makes using fuel difficult for debugging other optimizations which use it (<a href="https://github.com/rust-lang/rust/issues/55524" target="_blank" title="https://github.com/rust-lang/rust/issues/55524">#55524</a>). Removing this would close that issue and make debugging other optimization issues a bit easier. </p>
<p>If anyone has any objections, feel free to <span aria-label="thumbs down" class="emoji emoji-1f44e" role="img" title="thumbs down">:thumbs_down:</span> this comment otherwise I'll open a PR, tag the compiler team and let it go through the normal PR process.</p>
</blockquote>
<p>the irony here is that we added <code>-Zfuel</code> to debug layout (and specifically randomized field order IIRC, idk what happened to that, I don't think there is a flag to enable randomization), and no it shouldn't ICE, it should just not optimize after fuel runs out</p>
<p>I guess we should have is a per-category fuel so one would use <code>-Zfuel=layout=123,mir-opt=567</code></p>
<p>(<span class="user-mention" data-user-id="125250">@Wesley Wiser</span> should we move to a wg-mir-opt thread or something?)</p>



<a name="190396775"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396775" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396775">(Mar 12 2020 at 14:39)</a>:</h4>
<p><code>pub(crate)</code> is an obvious signal to just codegen function code into the rlib</p>



<a name="190396779"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396779" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396779">(Mar 12 2020 at 14:39)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> I would suggest we assume there's not until otherwise shown</p>



<a name="190396904"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396904" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396904">(Mar 12 2020 at 14:40)</a>:</h4>
<p>it would be good to get a backtrace with line numbers for the ICE</p>



<a name="190396917"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396917" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396917">(Mar 12 2020 at 14:40)</a>:</h4>
<blockquote>
<p>fwiw, my guess is that the feature flag is not necessary, and that the relevant type = impl Trait can be replaced by an async fn.</p>
</blockquote>
<p>but that's not proven as <span class="user-mention" data-user-id="126931">@centril</span> noted</p>



<a name="190396943"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396943" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396943">(Mar 12 2020 at 14:41)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span> yes, well, the filer has at least theorized that the <code>type = impl Trait</code> can be replaced with an <code>async fn</code></p>



<a name="190396979"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190396979" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190396979">(Mar 12 2020 at 14:41)</a>:</h4>
<p>we can always upgrade again when that's demonstrated <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="190397114"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397114" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397114">(Mar 12 2020 at 14:42)</a>:</h4>
<p>hmm. well I'm just vaguely worried that it will fall off our radar if we downgrade...</p>



<a name="190397116"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397116" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397116">(Mar 12 2020 at 14:42)</a>:</h4>
<p>this looks fairly trivial to "prove otherwise" to me, but I don’t have the bandwidth for doing so</p>



<a name="190397215"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397215" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397215">(Mar 12 2020 at 14:43)</a>:</h4>
<p>is there anyone here who has the ability and bandwidth to attempt the replacement with <code>async fn</code> that is suggested? Or do we just push back on the issue filer to do so?</p>



<a name="190397366"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397366" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397366">(Mar 12 2020 at 14:44)</a>:</h4>
<p>passive thought: what if we have allowed-to-fail tests for ICEs that need unstable features that start failing when feature is being stabilised? So that we don’t miss those.</p>



<a name="190397390"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397390" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397390">(Mar 12 2020 at 14:44)</a>:</h4>
<p>I guess I'm okay with reclassifying as P-medium and telling the issue filer that we will upgrade priority after seeing demo</p>



<a name="190397437"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397437" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397437">(Mar 12 2020 at 14:44)</a>:</h4>
<p><span class="user-mention" data-user-id="123586">@nagisa</span> ooh! I had similar thoughts recently</p>



<a name="190397454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397454">(Mar 12 2020 at 14:45)</a>:</h4>
<p>I think it's probably ok to mark it as "nightly only", <em>but</em> a lot of the code that deals with impl Trait is fairly common to different ways of using it, and I wouldn't be surprised if there is <em>some</em> way to trigger on stable.</p>



<a name="190397469"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397469" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397469">(Mar 12 2020 at 14:45)</a>:</h4>
<p>like, what if we just add ICEs as tests, and then we notice when they don't ICE anymore</p>



<a name="190397504"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397504" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397504">(Mar 12 2020 at 14:45)</a>:</h4>
<p>I'm in favor of that -- we used to do that on a compiler I worked on and it was very useful</p>



<a name="190397505"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397505" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397505">(Mar 12 2020 at 14:45)</a>:</h4>
<p>yeah a lot of other projects do this</p>



<a name="190397508"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397508" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397508">(Mar 12 2020 at 14:45)</a>:</h4>
<p><span class="user-mention" data-user-id="123586">@nagisa</span>  feels like a good design meeting candidate</p>



<a name="190397560"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397560" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397560">(Mar 12 2020 at 14:45)</a>:</h4>
<p>though I don't know if I'd block CI on it?</p>



<a name="190397605"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397605" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397605">(Mar 12 2020 at 14:46)</a>:</h4>
<p>anyway yeah lets maybe propose for design meeting</p>



<a name="190397613"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397613" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397613">(Mar 12 2020 at 14:46)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190397560" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190397560">said</a>:</p>
<blockquote>
<p>though I don't know if I'd block CI on it?</p>
</blockquote>
<p>Allowed-to-fail is the key.</p>



<a name="190397650"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397650" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397650">(Mar 12 2020 at 14:46)</a>:</h4>
<p>obligatory link: <a href="https://github.com/rust-lang/compiler-team/issues?q=is%3Aissue+is%3Aopen+label%3Ameeting-proposal" target="_blank" title="https://github.com/rust-lang/compiler-team/issues?q=is%3Aissue+is%3Aopen+label%3Ameeting-proposal">https://github.com/rust-lang/compiler-team/issues?q=is%3Aissue+is%3Aopen+label%3Ameeting-proposal</a></p>



<a name="190397661"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397661" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397661">(Mar 12 2020 at 14:46)</a>:</h4>
<p>Switching the label to P-medium then</p>



<a name="190397724"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397724" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397724">(Mar 12 2020 at 14:47)</a>:</h4>
<p>oh right, <em>this meeting</em></p>



<a name="190397745"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397745" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397745">(Mar 12 2020 at 14:47)</a>:</h4>
<p>nom 3/5: “ICE: src/librustc/middle/region.rs:1037: Encountered greater count 28” <a href="https://github.com/rust-lang/rust/issues/69307" target="_blank" title="https://github.com/rust-lang/rust/issues/69307">#69307</a></p>



<a name="190397864"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397864" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397864">(Mar 12 2020 at 14:48)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> what was AsyncAwait-OnDeck denote again?</p>



<a name="190397877"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397877" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397877">(Mar 12 2020 at 14:48)</a>:</h4>
<p>ah, "next focus items"</p>



<a name="190397898"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397898" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397898">(Mar 12 2020 at 14:48)</a>:</h4>
<p>we actually were moving away, I think, from those labels</p>



<a name="190397901"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397901" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397901">(Mar 12 2020 at 14:48)</a>:</h4>
<p>I would say this one is not P-high for t-compiler as it's not a regression</p>



<a name="190397912"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397912" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397912">(Mar 12 2020 at 14:48)</a>:</h4>
<p>towards priority labels</p>



<a name="190397919"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397919" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397919">(Mar 12 2020 at 14:48)</a>:</h4>
<p>heh</p>



<a name="190397924"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397924" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397924">(Mar 12 2020 at 14:48)</a>:</h4>
<p>but would be nice to fix; and has a small reproducer</p>



<a name="190397928"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397928" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397928">(Mar 12 2020 at 14:48)</a>:</h4>
<p>for issues like this we should get a backtrace from a debuginfo-level=1 build</p>



<a name="190397937"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397937" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397937">(Mar 12 2020 at 14:48)</a>:</h4>
<p>because we make such great use of those (priority labels, that is)...</p>



<a name="190397947"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190397947" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190397947">(Mar 12 2020 at 14:48)</a>:</h4>
<p>maybe one day the nightly will have that debuginfo :(</p>



<a name="190398004"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398004" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398004">(Mar 12 2020 at 14:49)</a>:</h4>
<p>although this one is surprisingly readable, but maybe that's just an illusion</p>



<a name="190398018"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398018" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398018">(Mar 12 2020 at 14:49)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> anyway I'm trying to infer whether this will be handled by the AsyncAwait WG</p>



<a name="190398034"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398034" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398034">(Mar 12 2020 at 14:50)</a>:</h4>
<p>in theory, if anyone picks it up</p>



<a name="190398054"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398054" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398054">(Mar 12 2020 at 14:50)</a>:</h4>
<p>and also, I'm definitely unhappy with the I-nominated system at this point</p>



<a name="190398106"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398106" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398106">(Mar 12 2020 at 14:50)</a>:</h4>
<p>it's in the pool of "bugs we'd like to handle"</p>



<a name="190398129"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398129" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398129">(Mar 12 2020 at 14:50)</a>:</h4>
<p>in terms of the ambiguity of what team is targetted by a nomination, and whether they have discharged it or not</p>



<a name="190398133"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398133" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398133">(Mar 12 2020 at 14:50)</a>:</h4>
<p>"sooner rather than later", I guess</p>



<a name="190398152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398152">(Mar 12 2020 at 14:50)</a>:</h4>
<p>sounds like something up <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> or <span class="user-mention" data-user-id="125294">@Aaron Hill</span>'s alleys</p>



<a name="190398195"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398195" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398195">(Mar 12 2020 at 14:51)</a>:</h4>
<p>I'm not really clear on why this is nominated at all :) but async-wait team doesn't use that label</p>



<a name="190398217"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398217" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398217">(Mar 12 2020 at 14:51)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> oh really? For some reason I had thought that that team did.</p>



<a name="190398230"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398230" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398230">(Mar 12 2020 at 14:51)</a>:</h4>
<p>Okay then, that makes things easier.</p>



<a name="190398315"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398315" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398315">(Mar 12 2020 at 14:52)</a>:</h4>
<p>so, in terms of the prioritization</p>



<a name="190398355"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398355" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398355">(Mar 12 2020 at 14:52)</a>:</h4>
<p>even though this is not a regression, AsyncAwait is a high-profile, heavily used feature, right?</p>



<a name="190398398"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398398" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398398">(Mar 12 2020 at 14:53)</a>:</h4>
<p>I had thought that was a reason that we would continue classifying bugs like this as P-high.</p>



<a name="190398533"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398533" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398533">(Mar 12 2020 at 14:54)</a>:</h4>
<p>it's on the 'short list' of bugs that async await wants to handle</p>



<a name="190398599"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398599" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398599">(Mar 12 2020 at 14:54)</a>:</h4>
<p>so I guess that is "p-high", I don't know, I think it's kind of unclear as you said what those labels should mean :)</p>



<a name="190398662"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398662" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398662">(Mar 12 2020 at 14:54)</a>:</h4>
<p>(I think <span class="user-mention" data-user-id="116883">@tmandry</span> moved over to using GH projects for the async-await WG internal tracking, so you can see it's in that "To Do" column, along with about 5 or 6 other bugs)</p>



<a name="190398667"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398667" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398667">(Mar 12 2020 at 14:54)</a>:</h4>
<p>my suggestion is that we leave as P-high and remove the I-nominated tag. That way, T-compiler won't revisit it every week</p>



<a name="190398676"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398676" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398676">(Mar 12 2020 at 14:54)</a>:</h4>
<p>probably the most immediate thing is to do mentoring</p>



<a name="190398690"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398690" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398690">(Mar 12 2020 at 14:54)</a>:</h4>
<p>which I might try to do</p>



<a name="190398730"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398730" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398730">(Mar 12 2020 at 14:55)</a>:</h4>
<p>okay next</p>



<a name="190398740"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398740" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398740">(Mar 12 2020 at 14:55)</a>:</h4>
<p>nom 4/5: “Replace our fragile safety scheme around erroneous constants” <a href="https://github.com/rust-lang/rust/issues/67191" target="_blank" title="https://github.com/rust-lang/rust/issues/67191">#67191</a></p>



<a name="190398817"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398817" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398817">(Mar 12 2020 at 14:55)</a>:</h4>
<p>should this be a design meeting?</p>



<a name="190398818"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398818" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398818">(Mar 12 2020 at 14:55)</a>:</h4>
<p>this was nominated ages ago ...  lets see</p>



<a name="190398836"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398836" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398836">(Mar 12 2020 at 14:56)</a>:</h4>
<p>I think we discussed all the points in there, I just need to impl it?</p>



<a name="190398890"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398890" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398890">(Mar 12 2020 at 14:56)</a>:</h4>
<p>I suspect the nomination is basically "stale"</p>



<a name="190398909"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398909" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398909">(Mar 12 2020 at 14:56)</a>:</h4>
<p>oh in fact, I think it was nominated for a different team</p>



<a name="190398935"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398935" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398935">(Mar 12 2020 at 14:56)</a>:</h4>
<p>and then just got moved to us?</p>



<a name="190398954"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398954" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398954">(Mar 12 2020 at 14:56)</a>:</h4>
<p>okay yeah</p>



<a name="190398959"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398959" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398959">(Mar 12 2020 at 14:56)</a>:</h4>
<p>it's in t-compilers court to impl now</p>



<a name="190398971"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190398971" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190398971">(Mar 12 2020 at 14:56)</a>:</h4>
<p>so this is awaiting an implementor</p>



<a name="190399007"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399007" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399007">(Mar 12 2020 at 14:57)</a>:</h4>
<p>but we don't need to visit it every week</p>



<a name="190399029"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399029" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399029">(Mar 12 2020 at 14:57)</a>:</h4>
<p>my suggestion is that we remove the nomination flag</p>



<a name="190399036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399036">(Mar 12 2020 at 14:57)</a>:</h4>
<p>nope</p>



<a name="190399069"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399069" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399069">(Mar 12 2020 at 14:57)</a>:</h4>
<p>(nope to visiting every week)</p>



<a name="190399079"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399079" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399079">(Mar 12 2020 at 14:57)</a>:</h4>
<p>I don't even know if it is P-high ...</p>



<a name="190399145"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399145" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399145">(Mar 12 2020 at 14:58)</a>:</h4>
<p>It should be P-high; it's a stability hole, essentially</p>



<a name="190399152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399152">(Mar 12 2020 at 14:58)</a>:</h4>
<p>the longer it is open the harder it gets to fix</p>



<a name="190399164"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399164" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399164">(Mar 12 2020 at 14:58)</a>:</h4>
<p>I made it P-high in terms of resolving the open questions</p>



<a name="190399169"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399169" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399169">(Mar 12 2020 at 14:58)</a>:</h4>
<p>those questions are now resolved</p>



<a name="190399206"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399206" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399206">(Mar 12 2020 at 14:58)</a>:</h4>
<p><span class="user-mention silent" data-user-id="126931">centril</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399152" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399152">said</a>:</p>
<blockquote>
<p>the longer it is open the harder it gets to fix</p>
</blockquote>
<p>there's a <em>lot</em> of things in that bucket...</p>



<a name="190399255"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399255" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399255">(Mar 12 2020 at 14:59)</a>:</h4>
<p>any idea how hard it is to fix, <span class="user-mention" data-user-id="124288">@oli</span>? has there been any motion on that?</p>



<a name="190399256"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399256" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399256">(Mar 12 2020 at 14:59)</a>:</h4>
<p>anyway it can stay as P-high</p>



<a name="190399304"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399304" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399304">(Mar 12 2020 at 14:59)</a>:</h4>
<p>there has been zero work towards it, but I think it's pretty straightforward to do</p>



<a name="190399320"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399320" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399320">(Mar 12 2020 at 14:59)</a>:</h4>
<p>so okay, keep P-high, removing I-nominated.</p>



<a name="190399344"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399344" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399344">(Mar 12 2020 at 14:59)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> think you can fix / leave mentoring notes?</p>



<a name="190399358"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399358" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399358">(Mar 12 2020 at 14:59)</a>:</h4>
<p><span class="user-mention silent" data-user-id="124288">oli</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399304" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399304">said</a>:</p>
<blockquote>
<p>there has been zero work towards it, but I think it's pretty straightforward to do</p>
</blockquote>
<p>do you want me to help?</p>



<a name="190399363"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399363" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399363">(Mar 12 2020 at 14:59)</a>:</h4>
<p>lets move along, we're almost done with the selected nominations for this week</p>



<a name="190399437"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399437" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399437">(Mar 12 2020 at 15:00)</a>:</h4>
<p>nom 5/5: “ICE field: higher-rank trait bound (HRTB) for&lt;'a&gt; ... hits OutputTypeParameterMismatch in librustc/traits/codegen” <a href="https://github.com/rust-lang/rust/issues/62529" target="_blank" title="https://github.com/rust-lang/rust/issues/62529">#62529</a></p>



<a name="190399490"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399490" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399490">(Mar 12 2020 at 15:00)</a>:</h4>
<p>any chance of us addressing lazy-normalization this year?</p>



<a name="190399540"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399540" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399540">(Mar 12 2020 at 15:01)</a>:</h4>
<p>(that question was why I nominated it0</p>



<a name="190399557"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399557" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399557">(Mar 12 2020 at 15:01)</a>:</h4>
<p>I suspect we'll know if we fix it this year :P</p>



<a name="190399577"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399577" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399577">(Mar 12 2020 at 15:01)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> thoughts?</p>



<a name="190399591"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399591" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399591">(Mar 12 2020 at 15:01)</a>:</h4>
<p>We've seen some movement re. lazy norm &amp; const generics</p>



<a name="190399751"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399751" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399751">(Mar 12 2020 at 15:02)</a>:</h4>
<p>mmmm. Okay well our hour time slot for the meeting is up. I guess I'll remove the nominated tag from this too. We don't need to revisit it every week.</p>



<a name="190399813"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399813" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399813">(Mar 12 2020 at 15:03)</a>:</h4>
<p>As for WG checkins: <span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> and I established ahead of time that neither WG-NLL nor WG-parallel-rustc have anything to report. So that's all!</p>



<a name="190399827"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399827" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399827">(Mar 12 2020 at 15:03)</a>:</h4>
<p>(Sorry, missed that ping)</p>



<a name="190399844"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399844" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399844">(Mar 12 2020 at 15:03)</a>:</h4>
<p>I think we're making progress, I don't know</p>



<a name="190399857"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399857" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399857">(Mar 12 2020 at 15:03)</a>:</h4>
<p>Thanks to everyone in <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> for attending, including those who were flummoxed by the USA time change!</p>



<a name="190399928"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190399928" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190399928">(Mar 12 2020 at 15:04)</a>:</h4>
<p>Make sure you express your concerns wrt landing <a href="https://github.com/rust-lang/rust/pull/55617" target="_blank" title="https://github.com/rust-lang/rust/pull/55617">https://github.com/rust-lang/rust/pull/55617</a> if you have any</p>



<a name="190400036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400036">(Mar 12 2020 at 15:04)</a>:</h4>
<p><span class="user-mention silent" data-user-id="123586">nagisa</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399928" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399928">said</a>:</p>
<blockquote>
<p>Make sure you express your concerns wrt landing <a href="https://github.com/rust-lang/rust/pull/55617" target="_blank" title="https://github.com/rust-lang/rust/pull/55617">https://github.com/rust-lang/rust/pull/55617</a> if you have any</p>
</blockquote>
<p>That seems rather bitrotted; might want to attempt a new perf run?</p>



<a name="190400037"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400037" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400037">(Mar 12 2020 at 15:04)</a>:</h4>
<p>I’ll rebase and look into landing it… right about now</p>



<a name="190400099"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400099" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400099">(Mar 12 2020 at 15:05)</a>:</h4>
<p><span class="user-mention silent" data-user-id="126931">centril</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190400036" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190400036">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="123586">nagisa</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399928" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190399928">said</a>:</p>
<blockquote>
<p>Make sure you express your concerns wrt landing <a href="https://github.com/rust-lang/rust/pull/55617" target="_blank" title="https://github.com/rust-lang/rust/pull/55617">https://github.com/rust-lang/rust/pull/55617</a> if you have any</p>
</blockquote>
<p>That seems rather bitrotted; might want to attempt a new perf run?</p>
</blockquote>
<p>It was done half a month ago and results didn’t change since the one done &gt; year ago. But sure.</p>



<a name="190400189"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400189" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400189">(Mar 12 2020 at 15:06)</a>:</h4>
<p>(18 days doesn't sound so badly bitrotted to me.)</p>



<a name="190400294"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400294" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400294">(Mar 12 2020 at 15:07)</a>:</h4>
<p>my mistake, PR seemed older <span aria-label="slight smile" class="emoji emoji-1f642" role="img" title="slight smile">:slight_smile:</span></p>



<a name="190400456"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400456" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400456">(Mar 12 2020 at 15:08)</a>:</h4>
<p><span class="user-mention" data-user-id="123586">@nagisa</span>  the diff in lowering seems fairly arbitrary and not well documented</p>



<a name="190400475"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400475" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400475">(Mar 12 2020 at 15:08)</a>:</h4>
<p>other than that I have no thoughts</p>



<a name="190400491"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202020-03-12%20%2354818/near/190400491" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818.html#190400491">(Mar 12 2020 at 15:08)</a>:</h4>
<p><span class="user-mention silent" data-user-id="126931">centril</span> <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190400456" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202020-03-12.20.2354818/near/190400456">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="123586">nagisa</span>  the diff in lowering seems fairly arbitrary and not well documented</p>
</blockquote>
<p>Concerns on the PR please.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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